I know that title sound ridiculous, but you know in IT sometimes strange things just happen. In my case was migrating agents from Windows to Linux, and I want to have compatibility between them.
You can ask if the Windows agent contains a bash? Of course, it contains. Even if you won’t install Windows Subsystem for Linux. So where is bash? In Git folder. To be precise in C:\Program Files (x86)\Git\usr\bin. If you add this to the path you have working Bash task on your Windows agent.
One more tip. If you are passing paths into Arguments of your build escape them with ' so for example instead of
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Package FileVersion=1.0.0.$(Build.BuildId) Configuration=$(BuildConfiguration) Output=$(build.artifactstagingdirectory)
put
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Package FileVersion=1.0.0.$(Build.BuildId) Configuration=$(BuildConfiguration) Output='$(build.artifactstagingdirectory)'
Second tip. Remember about git checkout and CR-LF versus LF. If you have a problem add .gitattributes file with the following content
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build.sh text eol=lf
That was a quite shot recipe.
The end!
p.s. Photo by Sai Kiran Anagani on Unsplash